Auxiliary starter



March 10, 1959 G. scHUH AUXILIARY STARTER Filed Sept. '2. 19s5 2Sheets-Sheet 2 INVENTGR ATTORNEYS United States Patent AUXILIARY STARTERGeorge Schuh, Fargo, N. Dak;

Application September 2, 1955, Serial No. 532,345

Claims. (Cl. 74-8) The present invention relates to auxiliary starters,and

more particularly to power starter mechanisms which.

are adapted to be attached to internal combustion engines of the typenot normally provided with a power starting mechanism.

The primary object of the invention is to provide an auxiliary powerstarting mechanism which can be attached to the crank shaft of an enginefor starting the engine and detach therefrom as soon as the engine hasstarted.

Another object of the invention is to provide a starter mechanism of theclass described which is readily portable and can be moved from point topoint to start engines as needed.

A further object of the invention is to provide a starter mechanism ofthe class described which utilizes the conventional electric startermotor and a V-belt drive therefor.

A still further object of the invention is to provide an auxiliaryelectric starter mechanism having interchangeable means to engage withthe crank shafts of unlike motors.

Another object of the invention is to provide a starter mechanism forattachment to starterless engines which will be inexpensive tomanufacture, non-complex to operate, and simple to repair.

Other objects and advantages will become apparent in the followingspecification when considered in the light of the attached drawings, inwhich:

Figure 1 is a side elevation of the invention shown attached to anengine to be started;

Figure 2 is a bottom plan view of the invention;

Figure 3 is a longitudinal vertical cross-section taken along the line3-3 of Figure 2, looking in the direction of the arrows;

Figure 4 is a transverse cross-section of the mounting structure of theinvention taken along the line 44 of Figure 1, looking in the directionof the arrows;

Figure 5 is an enlarged detail cross-section of the mounting structureillustrated in Figure 4, taken on the same plane as Figure 4;

Figure 6 is a fragmentary detail cross-section taken along the line 66of Figure 1, looking in the direction of the arrows, and

Figure 7 is a fragmentary side elevation shown partly in section of amodified crank shaft engaging member adapted for use with the startermechanism.

Referring now to the drawings in detail wherein like reference numeralsindicate like parts throughout the several figures, the referencenumeral 10 indicates generally an engine of the type employed forauxiliary power purposes which is normally started by a hand crank detachably connected to the drive shaft or by a rope-pull starter, neitherof which is shown.

An auxiliary starter mechanism is provided with a channel frame member11 having a transversely extending journal 12 welded as at 13 to one endof the member 11. A U-shaped handle 14 is welded or otherwise secured at15 to the end portion of the member 11 ad- 7 2,876,645 Patented Mar. 10,1959 jacent the journal 12. A shaft 16 is carried by the journal 12 andadapted to be rotated therein. A V-belt pulley wheel 17 is secured tothe shaft 16 by means of a pin 18. The opposite end of the shaft 16 isprovided with a tubular coupling 19 which extends over the shaft 16 andis secured thereto by means of a cotter key 20 which extends through thecoup1ing19 and the shaft 16. The coupling is provided with a pair ofdiametrically opposed spiral slots 21 and 22 to receive a drive pin 23extending transversely of the drive shaft 24 of the motor 10.

A channel-shaped motor base 25 is positioned over the frame member 11and carries a motor 26 on the upper face thereof by means of a motorbracket 27 which is secured to the motor base 25 by any suitable means.A tubular bushing member 28 extends between the parallel flanges of thechannel member 25 and is welded thereto as at 29. A shaft 30 having alength substantially greater than the bushing 28 extends through thebushing 28 and is provided at one end with a right angular base plate 31and at the other end with a right angular base plate 32 which are weldedas at 33 and 34 to the shaft 30. The base plates 31 and 32 are providedwith feet 35 and 36 for engagement with a base 37 to which they areattached by bolts 38 and 39.

A clamp 40.having a pair of upstanding parallel side plates 41 and 42 ispositioned under the member 11 with the side plates 41 and 42 extendingupwardly beyond the member 11. The bushing 28 is journalled in the sideplates 41 and 42 and extend outwardly beyond the side plates 41 and 42at each end. A clamp screw 43 is threaded through the clamp member 40 soas to engage the bight 44 of the channel member 11 so that pressureagainst the channel 11 will lock the clamping plate 40 thereto tomaintain the motor 26 in spaced relation to the pulley 17.

The motor 26 is provided with a pulley 45 which is aligned with thepulley 17 and a belt 46 is trained over the pulleys 45 and 17 so thatrotation of the motor 26 will rotate-:the pulley 17 and itsshaft 16. Astarter switch'47 is mounted on the side of the motor 26 and isconnected to the source of electricity so that pressure on the pushbutton 48 will close the switch 47 and energize the motor 26 to start itin rotation.

A bracket 49 extends rearwardly from the motor support 25 and isprovided with a bore 50 adjacent the outer end thereof. An eye bolt 51has the eye 52 thereof mounted through the bore 50 and the threadedportion 53 thereof extending through a bore 54 in the member 11. A wingnut 55 is threaded onto the eye bolt 51 and operation thereof will causethe motor 26 on its motor support 25 to pivot about the shaft 30 totighten or loosen the belt 46 as required.

Referring now to Figure 7, a modified form of crank shaft engagingmechanism is disclosed wherein a shaft 56 is provided with a socket 57to engage over the end of the shaft 16 to which it is secured by acotter key 58. The outer end of the shaft 56 is provided with a crosspin 59 for engagement with a crank shaft (not shown) of the type havingdiametrically opposed spiral slots formed about'a socket portion. Theextended shaft 56 permits the use of the starter with trucks, motorvehicles and other engines requiring elongated shafts to reach the crankshaft.

In the use and operation of the invention, a base memher or board 37 ispositioned adjacent an engine 10 and secured in place by any suitablemeans (not shown). Base members 31 are secured to the board 37 by bolts39 with the coupling 19 in alignment with the drive shaft 24 of theengine 10. When it is desired to start the engine 10, the handle 14 isgrasped in one hand and the bushing 28 is slid endwise on the shaft 30to move the 3 starter toward the engine 10 so that the coupling 19 willbe brought to a position so that slots 21 and 22 therein will engage thepin 23 on the crank shaft 24, whereupon the starter button 48 on thestarter switch 47 is depressed causing the .motor 26 to rotate.and'through its belt drive to rotate the coupling 19, revolving thecrank shaft 2740f the engine 10 vuntil the engine 10 starts under itsown power. Immediately. the starter .is disengaged from the engine 10 bypulling outward on the handle 14 to move the starter away from theengine 10. To, utilize the device with other engines, the bolts 39 aredisengaged from the base plates 3.1 and 32 and the starter ismoued to asimilar board 37 adjacent the engine to be started. Since internalcombustion engines are constructed with both right; and left-handrevolving crank shafts, it is contemplated that the coupling 19 will beconstructed with .reversedslots 21 and 2 2 for cooperation withreverselyturning crank shafts, and the motor 26 in such cases will bereplaced with a reversely turning fmotor.

Having thus described the preferred embodiments of .the invention, itshould be understood that numerous structural modifications andadaptations may be resorted to without departing from the scope of theappended claims.

What is claimed is:

1. A starter mechanism for attachment to a motor comprising a base, atransversely extending horizontal .shaft secured to said base, a bushingmember mounted on said shaft for pivotal and lateral sliding movementthereon, an .elongatedchannel member, means journalled on said bushingmember securing one end of said channel member to said bushing member, amotor base sepulley on said second shaft whereby rotation of said motorwill rotate said second shaft, said coupling being engageable with anengine to be started upon lateral sliding movement of said channelmember, said motor and said second shaft whereby said engine will bestarted upon rotation of said motor.

2. A device as claimed in claim 1 wherein means are provided forclamping said channel member against said bushing member.

3. A device as claimed in claim 1 wherein said coupling member includesa third shaft axially aligned with said second shaft and detachablysecured thereto, and a cross pin secured to the outer end of said thirdshaft for engagement with the crank shaft of said engine.

4. A starter mechanism for attachment to a motor comprising: a base, atransversely extending horizontal shaft secured to said base, anelongated channel member, means adjacent one end of said channel membersecuring said channel member to said horizontal shaft for pivotal andlateral sliding movement thereon, a second shaft, means fixed to theother end of said channel member joumal ling said second shaft thereon,a pulley mounted on one end of said second shaft, a coupling mounted onthe opposite end of said second shaft for detachably coupling saidsecond shaft to an engine to be started, a motor, means cooperatingwiththe means securing said channel to said horizontal shaft pivotallysecuring said motor to said elongated channel member, a pulley on saidmotor, and a belt trained over the pulley on said motor and the pulleyonsaid second shaft whereby rotation of said motor will rotate said secondshaft, said coupling being engageable with an engine to be started uponlateral sliding movement of said channel member, said motor and saidsecond shaft whereby said engine will be started upon rotation of saidmotor.

5. A device as claimed in claim 1 wherein means are provided extendingbetween said motor base and said channel member for arresting thepivotal movement of said motor with relation to said channel member.

References Cited in the file of this patent UNITED STATES PATENTS2,224,576 Mutschler Dec, 10, 1940 2,623,393 Morrison Dec. 30, 1952 FO EGN ATENTS 541,505 France May 3, 1927 a... A?! n.

